| Acronym | Meaning |
| G O A T | Greatest Of All Time |
| GA | Go Ahead |
| GAC | Guilty As Charged Get A Clue |
| GAFIA | Get Away From It All |
| GAFM | Get Away From Me |
| GB | Great Britain Gigabyte |
| GBA | God Bless America |
| GBFN | Goodbye for Now |
| GBH | Grievous Bodily Harm |
| GBML | Good Bye My Love |
| GBNF | Gone But Not Forgotten |
| GBP | Great British Pounds (Sterling) |
| GBTM | Get Back To Me |
| GBTW | Get Back To Work |
| GBU | God Bless You |
| GBWY | God Be With You |
| GBY | God Bless You |
| GC | Good Contition |
| GCF | Good Clean Fun |
| GCMG | God Calls Me God |
| GCSE | General Certificate of Secondary Education (UK) |
| GCWOK | Gay Couple Without Kids |
| GD | Gangsta Disciple |
| GDFR | Going Down For Real |
| GDI | God Damn It |
| GDP | Gross Domestic Product |
| GE | Good Evening |
| GED | General Educational Development |
| GFA | Grenade Free America |
| GFAK | Go Fly A Kite |
| GFC | Global Financial Crisis |
| GFETE | Grinning From Ear To Ear |
| GFF | Grenade Free Foundation |
| GFI | Go For It |
| GFN | Gone For Now |
| GFP | Good For Pics |
| GFTW | Go For The Win |
| GFU | Good For You |
| GFWL | Games For Windows Live |
| GFY | Good For You |
| GG | Good Game |
| GGA | Good Game All |
| GGBB | Good Game Bye Bye |
| GGG | Good, Giving, and Game (in bed) |
| GGN | Gotta Go Now |
| GGNORE | Good Game No Rematch |
| GGOH | Gotta Get Outta Here |
| GH | Guitar Hero |
| GHB | Gamma Hydroxybutyrate (drug) |
| GHD | Good Hair Day |
| GIWIST | Gee, I Wish I’d Said That. |
| GIY | Google It Yourself |
| GIYF | Google Is Your Friend |
| GJ | Good Job |
| GJOAC | Go Jump Off A Cliff |
| GJWHF | Girls Just Wanna Have Fun |
| GK | Good Kid |
| GKY | Go Kill Yourself |
| GL | Good Luck Good Looking |
| GL HF | Good Luck, Have Fun |
| GLA | Good Luck All |
| GLAG | Giggling Like A Girl |
| GLOTR | Good Luck On The Rebuild |
| GLTA | Good Luck to All |
| GLTY | Good Luck To You |
| GLU | Guys/Girsl Like Us |
| GLWS | Good Luck With Sale |
| GLWT | Good Luck With That |
| GM | General Motors Good Morning Genetically Modified Good Move |
| GMA | Good Morning, America |
| GMAB | Give Me A Break |
| GMT | Greenwich Mean Time |
| GMTA | Great Minds Think Alike |
| GMV | Got My Vote |
| GMY | Good Man Yourself |
| GN | Good Night |
| GND | Girl Next Door |
| GNE | Good Night and Everything |
| GNFB | Good Night Facebook |
| GNSD | Good Night, Sweet Dreams |
| GOAT | Greatest Of All Time |
| GOMER | Get Out of My Emergency Room, unwelcome patient |
| GOMF | Get Outta My Face |
| GOML | Get On My Level |
| GOOMF | Get Out Of My Face |
| GOOML | Get Out Of My Life |
| GOP | Grand Old Party |
| GP | General Principle |
| GPA | Grade-Point Average |
| GPC | Generic Pack of Cigarettes Get/Post/Cookie (web pages) |
| GPL | General Public License |
| GPOY | Gratuitous Picture Of Yourself |
| GPOYW | Gratuitous Picture Of Yourself Wednesday |
| GPRS | General Packet Radio Services |
| GPS | Global Positioning System |
| GPU | Graphics Processing Unit |
| GR | Gotta Run |
| GSD | Getting Stuff Done |
| GSM | Global System for Mobile communications |
| GSOH | Good Sense Of Humor |
| GSR | Gun Shot Residue |
| GSTQ | God Save The Queen |
| GSW | Gun Shot Wound |
| GTB | Go To Bed |
| GTBB | Good To Be Back |
| GTBOSH | Glad To Be Of Some Help |
| GTD | Getting Things Done |
| GTG | Got To Go |
| GTGG | Got To Get Going |
| GTH | Go To Hell |
| GTHBA | Good Times Had By All |
| GTHO | Get The Hell Out |
| GTK | Good To Know |
| GTM | Giggling To Myself |
| GTO | Gran Turismo Omologato |
| GTRM | Going To Read Mail |
| GTSY | Good To See You |
| GTTS | Got The T-Shirt |
| GTW | Got To Work |
| GU | Grow Up |
| GUTI | Get Used To It |
| GW | Good Work |
| GWAS | Game Was A Success |
| GWC | Guy With Camera |
| GWG | Girl With Glasses |
| GWI | Get With It |
| GWK | Game Winning Kill |
| GWP | Gift With Purchase |
| GWR | Guinness World Records |
| GWS | Get Well Soon |
| GWTF | Go With The Flow |
| GWTP | Get With The Program |
| GYALDEM | Group of girls |
| GYC | Get Your Coat |
| GYFS | Get Your Facts Straight |
| GYO | Get Your Own |
| GYT | Get Yourself Tested |